/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraOverviewGraphViewModel.h
Gets the currently selected graph nodes.
[TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FNiagaraObjectSelection](API\Plugins\NiagaraEditor\FNiagaraObjectSelection) > GetNodeSelection()